Berlin - upper margin, 1948-1990, almost complete mint never hinged upper margin quality collection in 2 safe ring binder, as well many expertized Schlegel BPP issues amongst other things black overprint, 1 Mark and 2 Mark red overprint, souvenir sheet 1 always with photo certificate "perfect", 2 DM till 5 DM buildings always with attest, green overprint, philharmonic, bell I-III, and so on.